Commit c48ec42d authored Jul 15, 2016 by Wei Jiangang Committed by Ingo Molnar Jul 15, 2016

x86/tsc: Remove the unused check_tsc_disabled()



check_tsc_disabled() was introduced by commit:

  c73deb6a ("perf/x86: Add ability to calculate TSC from perf sample timestamps")

The only caller was arch_perf_update_userpage(), which had been refactored
by commit:

  d8b11a0c ("perf/x86: Clean up cap_user_time* setting")

... so no need keep and export it any more.

Signed-off-by: Wei Jiangang <weijg.fnst@cn.fujitsu.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: a.p.zijlstra@chello.nl
Cc: adrian.hunter@intel.com
Cc: bp@suse.de
Link: http://lkml.kernel.org/r/1468570330-25810-1-git-send-email-weijg.fnst@cn.fujitsu.com


Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent ff4c8663

arch/x86/include/asm/tsc.h

+0 −1

Original line number	Diff line number	Diff line
		@@ -35,7 +35,6 @@ extern void tsc_init(void);
		extern void mark_tsc_unstable(char *reason);
		extern int unsynchronized_tsc(void);
		extern int check_tsc_unstable(void);
		extern int check_tsc_disabled(void);
		extern unsigned long native_calibrate_cpu(void);
		extern unsigned long native_calibrate_tsc(void);
		extern unsigned long long native_sched_clock_from_tsc(u64 tsc);

arch/x86/kernel/tsc.c

+0 −6

Original line number	Diff line number	Diff line
		@@ -335,12 +335,6 @@ int check_tsc_unstable(void)
		}
		EXPORT_SYMBOL_GPL(check_tsc_unstable);

		int check_tsc_disabled(void)
		{
		return tsc_disabled;
		}
		EXPORT_SYMBOL_GPL(check_tsc_disabled);

		#ifdef CONFIG_X86_TSC
		int __init notsc_setup(char *str)
		{

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